2008-08-19

Jazz Improvisation and the Brain

A recent fMRI study of the brain activity of improvising jazz musician shows remarkable changes in brain activity during this creative proces: a brain region responsible for self-monitoring is shut down and an area responsible for self-expression is switched on.

A remarkable state of the mind


Clipped from: THIS IS YOUR BRAIN ON JAZZ: RESEARCHERS USE MRI TO STUDY SPONTANEITY, CREATIVITY

Johns Hopkins Medicine

“When jazz musicians improvise, they often play with eyes closed in a distinctive, personal style that transcends traditional rules of melody and rhythm,” says Charles J. Limb, M.D., assistant professor in the Department of Otolaryngology-Head and Neck Surgery at the Johns Hopkins School of Medicine and a trained jazz saxophonist himself. “It’s a remarkable frame of mind,” he adds, “during which, all of a sudden, the musician is generating music that has never been heard, thought, practiced or played before. What comes out is completely spontaneous.”

Though many recent studies have focused on understanding what parts of a person’s brain are active when listening to music, Limb says few have delved into brain activity while music is being spontaneously composed.

Dr. Charles Limb, a Johns Hopkins surgeon, has completed a study of brain function changes when musicians improvise. (Sun photo by Andre F. Chung / June 26, 2008)


Clipped from: YouTube - Your Brain On Jazz



fMRI study


Clipped from: This is your brain on Jazz..... - Biophysics - Zimbio



Each musician first took part in four different exercises designed to separate out the brain activity involved in playing simple memorized piano pieces and activity while improvising their music.

Results


Clipped from: This is your brain on Jazz..... - Biophysics - Zimbio

The scientists found that a region of the brain known as the dorsolateral prefrontal cortex, a broad portion of the front of the brain that extends to the sides, showed a slowdown in activity during improvisation. This area has been linked to planned actions and self-censoring, such as carefully deciding what words you might say at a job interview. Shutting down this area could lead to lowered inhibitions, Limb suggests.

The researchers also saw increased activity in the medial prefrontal cortex, which sits in the center of the brain’s frontal lobe. This area has been linked with self-expression and activities that convey individuality, such as telling a story about yourself.


Clipped from: PLoS ONE : Publishing science, accelerating research

http://clipyx.com/uploads/journal.pone.0001679.g003.png


Clipped from: THIS IS YOUR BRAIN ON JAZZ: RESEARCHERS USE MRI TO STUDY SPONTANEITY, CREATIVITY

“Jazz is often described as being an extremely individualistic art form. You can figure out which jazz musician is playing because one person’s improvisation sounds only like him or her,” says Limb. “What we think is happening is when you’re telling your own musical story, you’re shutting down impulses that might impede the flow of novel ideas.”

Limb notes that this type of brain activity may also be present during other types of improvisational behavior that are integral parts of life for artists and non-artists alike. For example, he notes, people are continually improvising words in conversations and improvising solutions to problems on the spot. “Without this type of creativity, humans wouldn’t have advanced as a species. It’s an integral part of who we are,” Limb says.

Related:
THIS IS YOUR BRAIN ON JAZZ: RESEARCHERS USE MRI TO STUDY SPONTANEITY, CREATIVITY
The Department of Otolaryngology-Head & Neck Surgery
Study: Prefrontal Cortex In Jazz Musicians Winds Down When Improvising | Scientific Blogging
PLoS ONE: Neural Substrates of Spontaneous Musical Performance: An fMRI Study of Jazz Improvisation
MRI: Viewing your brain and other soft tissues - MayoClinic.com